In Defense of Marxism: Against the Petty Bourgeois Opposition is a book written by Leon Trotsky, a prominent Marxist revolutionary and theorist. The book is a collection of essays and speeches that Trotsky wrote between 1939 and 1940, during a time when the Marxist movement was facing significant opposition from within.The book is a passionate defense of Marxist theory and its relevance in the modern world. Trotsky argues that the petty bourgeois...